Alert archive / Mississippi / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 93, NWS Mobile, AL

March 25, 2017Stone County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 25, 2017, 2:13 PM CDT for Stone County, Mississippi. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 25, 2017, 2:13 PM CDT (19:13 UTC)
Expired
Mar 25, 2017, 3:00 PM CDT
In force
47 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Stone County, MS

The radar

The Mobile radar (KMOB), 94 km from the middle of the area, began a volume at 19:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.2 hours before the alert went out and 75 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2017-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 925 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2017-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
925 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
530 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted.

395 
WUUS54 KMOB 251913
SVRMOB
MSC131-252000-
/O.NEW.KMOB.SV.W.0093.170325T1913Z-170325T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
213 PM CDT SAT MAR 25 2017

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Stone County in southeastern Mississippi...

* Until 300 PM CDT

* At 213 PM CDT, a severe thunderstorm was located 13 miles west of
  Saucier, or 17 miles southeast of Poplarville, moving northeast at
  25 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Wiggins, Perkinston and McHenry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3084 8934 3091 8929 3091 8906 3084 8896
      3068 8915 3068 8924 3065 8924 3065 8934
TIME...MOT...LOC 1913Z 218DEG 22KT 3064 8936 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
008 
WWUS54 KMOB 251952
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
252 PM CDT SAT MAR 25 2017

MSC131-252002-
/O.EXP.KMOB.SV.W.0093.000000T0000Z-170325T2000Z/
Stone MS-
252 PM CDT SAT MAR 25 2017

...THE SEVERE THUNDERSTORM WARNING FOR STONE COUNTY WILL EXPIRE AT
300 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, therefore the warning will be allowed to expire.

LAT...LON 3084 8934 3091 8929 3091 8906 3084 8896
      3068 8915 3068 8924 3065 8924 3065 8934
TIME...MOT...LOC 1952Z 218DEG 22KT 3082 8920 

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 25, 9:27 AM CDTSpecial Weather StatementMOBPerry, Wayne78 min
Mar 25, 2:55 PM CDTSpecial Weather StatementMOBGeorge, Greene, Perry, Stone65 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2017Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.